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test/CMakeLists.txt: Use an explicit list instead of GLOB #1779

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merged 1 commit into from
Oct 9, 2019

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t-b
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@t-b t-b commented Oct 7, 2019

Using GLOB is slow and considered bad practice.

From https://cmake.org/cmake/help/latest/command/file.html:

We do not recommend using GLOB to collect a list of source files from
your source tree. If no CMakeLists.txt file changes when a source is
added or removed then the generated build system cannot know when to ask
CMake to regenerate. The CONFIGURE_DEPENDS flag may not work reliably on
all generators, or if a new generator is added in the future that cannot
support it, projects using it will be stuck. Even if CONFIGURE_DEPENDS
works reliably, there is still a cost to perform the check on every
rebuild.

Close #1686.

Using GLOB is slow and considered bad practice.

From https://cmake.org/cmake/help/latest/command/file.html:

> We do not recommend using GLOB to collect a list of source files from
> your source tree. If no CMakeLists.txt file changes when a source is
> added or removed then the generated build system cannot know when to ask
> CMake to regenerate. The CONFIGURE_DEPENDS flag may not work reliably on
> all generators, or if a new generator is added in the future that cannot
> support it, projects using it will be stuck. Even if CONFIGURE_DEPENDS
> works reliably, there is still a cost to perform the check on every
> rebuild.
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Coverage Status

Coverage remained the same at 100.0% when pulling eb6fe42 on t-b:avoid-using-glob-in-cmake into d187488 on nlohmann:develop.

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Looks good to me.

@nlohmann nlohmann self-assigned this Oct 9, 2019
@nlohmann nlohmann added this to the Release 3.7.1 milestone Oct 9, 2019
@nlohmann nlohmann merged commit ed55414 into nlohmann:develop Oct 9, 2019
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nlohmann commented Oct 9, 2019

Thansk!

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nlohmann commented Oct 9, 2019


🔖 Release item

This issue/PR will be part of the next release of the library. This template helps preparing the release notes.

Type

  • ✨ New Feature
  • 🐛 Bug Fix
  • ⚡️ Improvement
  • 🔨 Further Change
  • 🔥 Deprecated function

Description

  • Avoid usage of GLOB in CMake

@t-b t-b deleted the avoid-using-glob-in-cmake branch October 9, 2019 08:17
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Consider listing files explicitly instead of using GLOB
3 participants